This seven level, 120' x 300' parking garage in the central downtown area of Tacoma was the first in a series of garages in the Puget Sound region to use the integrated precast beam/column units as a structural/architectural framing system. These large frame units combine columns and beams into an element that is connected vertically using an embedded reinforcing splice system that provides full moment capacity in the joint. The floors are constructed with 24" deep double tees, 10' wide x 54' long, spanning from the perimeter beam-column frames to a cast-in-place center shear wall.

The first phase of construction was 5 levels high and allowed for the addition of more levels in the future. Two additional levels were added in 2002, adding 230 parking spaces to the existing 692-stall structure.

Products

Deck - 375 (ea) - 24" x 10'-0" wide x 54’-4" Double Tees

Framing/Exterior - Beam/Column Frame Units

Features

Fewer Pieces - Combined beam/column frame units reduce the number of pieces to erect and minimize the number of connections between beams and columns.

Work Platform - Double tees provide a safe, unobstructed work platform, immediately after erection, that is usable for light construction loads.

Composite System - Reinforced, cast-in-place concrete topping over the double tees provides a leveling course, proper drainage slopes, and a structural floor diaphragm.

Credits